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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Joel Snyder

Security hardware and software


More about Snyder's lab
Recent tests and articles


[Snyder pic]Joel Snyder is an internationally known expert in the area of telecommunications and networks, with an emphasis on security. His thesis, from the University of Arizona's Department of Management Information Systems, analyzed the development, use, and technologies of computer networks in the former Soviet Union. He is currently a Senior Partner at Opus One, a consulting firm, in Tucson, Arizona.

As a consultant with over two decades of experience, Snyder has written compilers, data management applications, conferencing systems, VLSI layout applications, firewalls, and network software; designed and implemented information systems for clients as small as a two-person brokerage house and as large as NASA; built network systems for clients on six continents; assisted software and hardware vendors in design, review, architecture, development, and testing of products; and served on ANSI, IEEE, ISO, and CCITT working groups developing telecommunications standards.

Snyder has also held full-time positions with CompuServe, Inc. (at their Research and Development Center) and with the University of Arizona (in the College of Business).

Snyder's clients include organizations throughout the Americas, Europe, and Asia, including Apple, AT&T, Australian Broadcasting Company, Cisco, Citibank, Daimler-Benz, Fidelity Investments, Hoffman-La Roche, Honeywell, Juniper, MCI, Motorola, Nokia, Schlumberger, State of California, the Swiss Stock Exchange, the UN, Visa, Xerox, the White House, and World Bank.

As an author and trainer, Snyder has given keynote speeches at conferences in the US, Western and Eastern Europe, Asia, and throughout the former Soviet republics. He has presented training seminars to many clients, including both private and public agencies.

Snyder has written hundreds of articles, has been published in over a dozen different journals and industry magazines in the US, UK, Russia, Germany, Australia, Portugal, Denmark, Japan, Spain, Italy, and France. His product testing work in network and telecommunications products is well known and respected in the field, and his published reviews have received several awards for editorial excellence.

Dr. Snyder has also written three books and edited two journals.

Recent tests and articles by Joel Snyder:

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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

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